BRENTWOOD — Local police are investigating an explosive device that was found in the 1100 block of Dainty Avenue.

The Walnut Creek Police Department Bomb Squad identified the suspicious item as an explosive device and rendered it safe at 12:20 p.m. Wednesday, according to a news release.

The investigation began after a resident called police at 8:05 a.m. Wednesday to report a suspicious package, said Sonia Cardinale, police records supervisor. Brentwood Police arrived at the scene soon after the resident’s report was made. Upon arrival, local police called in the Walnut Creek Police Department Bomb Squad for further examination.

Residents were notified and advised to stay inside their homes Wednesday morning. Nearby schools were advised to keep students and faculty inside and some nearby roads were blocked off.

More information will be available when the investigation is completed, Cardinale said.

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